Ok, found and written a possible solution to this. I appreciate the help
because I would continued searching it from a python point of view. Now
I'm able to retrieve a pointer to others' TLBs and make a lookup. But I
also want to emulate a delay meaning the time that would take to send
the request to the TLBs and receive the reponse from each one. Taking
into account that this would be a broadcast, the time can be fixed. How
can it be done properly?
El 13/11/12 16:12, Nilay Vaish escribió:
On Tue, 13 Nov 2012, Albert wrote:
Aren't they created from a Python script as a SimObject and accesible
by the CPU used through a Param of it?
I mean, if I mentioned Python scripts, to begin with, was because I
though the System objects were created there. But also, as I said,
I'm still trying to figure out how it works.
El 13/11/12 13:28, Nilay Vaish escribió:
On Tue, 13 Nov 2012, Albert wrote:
Ok, that seems to make sense, being also a simpler approach, but
where exactly it should be done? Objects are instantiated from
python scripts, so I imagine you are thinking about a parameter for
one of those scripts? Also, TLBs are instantiated from the CPU (itb
and dtb), but I want to collect the TLBs of each cpu on the System.
CPUs are instantiated in m5/simulate.py along other objects
descending from Root, but I'm not sure how to retrieve the TLBs
from there. I'm not really used to the Python/C++ mixture in the
config, and grep search where the objects are instantiated is a bit
hard. So it is not really clear to me how to proceed.
And if I finally manage to create that list, if it is a parameter
on a script as mentioned, how can I make it accesible from the
tlb.cc class?
Forget about python part of gem5 for the time being. Think purely
from C++ point of view. You have a class named TLB. Whenever an
object of this class is created you need to add it to a list. So,
you need to create a list before any of the TLB objects have been
created and you need to figure out when a TLB object is created. If
you just think C++, you should be able to make out how to do both of
these.
Ultimately a TLB object is an object in C++ sense. Why don't you try
what I am hinting at? I still suggest that you forget about the Python
for the time being and try to solve the problem with in the realm of C++.
--
Nilay
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